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Equidecomposable magmas [PDF]

open access: yesCard\'o, C. Equidecomposable magmas. Algebra Univers. 81, 57 (2020), 2020
A magma is called equidecomposable when the operation is injective, or, in other words, if $x+y=x'+y'$ implies that $x=x'$ and $y=y'$. A magma is free iff it is equidecomposable and graded, hence the notion of equidecomposability is very related to the notion of freeness although it is not sufficient. We study main properties of such magmas.
arxiv   +3 more sources

Emplacement of magma pulses and growth of magma bodies [PDF]

open access: yesTectonophysics, 2011
Magmatism is responsible for the formation of continental and oceanic crusts. It is the main agent of mass and heat transfers from the mantle towards the crust, the hydrosphere (oceanic and continental hydrothermalism) and the atmosphere (emissions of volcanic gas and ashes).
Menand, Thierry   +2 more
openaire   +5 more sources

Halogen Enrichment of Siberian Traps Magmas During Interaction With Evaporites

open access: yesFrontiers in Earth Science, 2021
Volatile emissions to the atmosphere associated with the Siberian Traps eruptions at the Permian-Triassic boundary were sourced from the outgassing of primary magmas and the sedimentary host rocks into which they were intruded. Halogens in volcanic gases
Svetlana Sibik   +6 more
doaj   +1 more source

Feeding of a magma chamber by an ascending magma bubble [PDF]

open access: yesGeophysical Journal International, 2021
SUMMARY There is evidence that magma chambers are not fed by a continuous flow, but in the form of discrete magma batches. The possibility is considered that the chamber is fed by a magma bubble ascending through the region underneath, driven by buoyancy force.
openaire   +1 more source

Magma / Suspension Rheology

open access: yesReviews in Mineralogy and Geochemistry, 2022
International ...
Kolzenburg, Stephan   +2 more
openaire   +2 more sources

Redox evolution of the crystallizing terrestrial magma ocean and its influence on atmosphere outgassing [PDF]

open access: yesA&A 688, A47 (2024), 2023
Magma oceans are episodes of large-scale melting of the mantle of terrestrial planets. The energy delivered by the Moon-forming impact induced a deep magma ocean on the young Earth, corresponding to the last episode of core-mantle equilibration. The crystallization of this magma ocean led to the outgassing of volatiles initially present in the Earth's ...
arxiv   +1 more source

A History of Andesite Production via Magma Mixing and Mingling Revealed Microscopically at Ngauruhoe Volcano

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Many andesites erupted at arc volcanoes are the products of magma mixing, and this process could be important in triggering their eruption. Throughout the life of Ngauruhoe volcano (∼2.5 ka), erupted andesites lack macroscopic enclaves or lithological ...
Kate Cocker   +4 more
doaj   +1 more source

Cryptographically Strong Elliptic Curves of Prime Order [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2021
The purpose of this paper is to generate cryptographically strong elliptic curves over prime fields Fp, where p is a Mersenne prime, one of the special primes or a random prime. We search for elliptic curves which orders are also prime numbers.
Marcin Barański   +2 more
doaj   +1 more source

Aging in magma rheology

open access: yesScientific Reports, 2022
AbstractAging, change in property depending on the elapsed time from preparation, is known to affect the rheological behavior of various materials. Therefore, whether magma ages must be examined to characterize potentially widespread volcanic phenomena related to the transition from rest to flow.
Aika K. Kurokawa   +2 more
openaire   +3 more sources

Disequilibrium Rheology and Crystallization Kinetics of Basalts and Implications for the Phlegrean Volcanic District

open access: yesFrontiers in Earth Science, 2020
Large volcanic eruptions are frequently triggered by the intrusion of hot primitive magma into a more evolved magma-chamber or -mush zone. During intrusion into the cooler mush zone, the basaltic magma undergoes crystallization, which in turn can release
Stephan Kolzenburg   +5 more
doaj   +1 more source

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